LeoForth

A java implementation of the Forth programming language

LeoForth is a Forth implementation written using the Java language. The LeoForth system is not an ANS Forth but has many words that the ANS Forth has and the other words can be defined easily.

LeoForth has been packaged for Android devices! Now you can play Forth on your phone/tablet! Install the Forth interpreter via the Android Market!

Forth (see Wikipedia) is a structured imperative stack-based computer programming language and programming environment.

A procedural, stack-oriented and reflective programming language without type checking, Forth features both interactive execution of commands (making it suitable as a shell for systems that lack a more formal operating system) and the ability to compile sequences of commands for later execution.

Features

Beside all the Forth features, such as decomposition, factorization and component iterative programming, this implementation has some pecularities:

It's compiled in a series of primitives that are stored in a virtual "Forth memory".
The stack is composed of java objects.
Strings are represented as java strings so you don't need two stack parameters for passing strings (address and count).
Has an internal help system. See help word.
Has multiple vocabulary management. See vocabulary, definition, also and only words.
You can create instances of java classes. See jnewn word.
You can invoke method on java objects. See jinvoken word.
You can access all the java classes and libraries.
Has a simple development environment with a code editor and a Forth shell.

You can use LeoForth as an internal scripting language embedding it.

LeoForth Binary	click here The main jar is Forth.jar, updated on 21 August 2007
LeoForth Source (Netbeans Project)	click here updated on 21 August 2007

LeoForth

Features

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